Abstract: The principles of the classic rotary Wimshurst machine, which produces dc high voltage ...

Abstract:The principles of the classic rotary Wimshurst machine,which produces dc high voltage by regenerative electrostaticinduction, are used to develop a new alternating high-voltage machine. This device has no electrical inputsbut can spontaneously produce either dc or three-phase achigh voltage, depending on external connections. Themachine constructed by the authors produces voltages inexcess of 18 kV which frequencies of operation up to 2 Hz.Improved design can extend the voltage and frequencyoperating ranges. Analysis is extended to include multi-phase, multi-frequency operation by modeling the devicewith a distributed equivalent circuit representation. Thenatural frequencies of the system are calculated where it isfound that many overstable modes are present.

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